Wilbur Martinez-Guzman, 19, was arrested at 4:30 p.m. Saturday in Carson City and is being held there on charges related to burglary and possession of stolen property, and charges related to his immigration status.

At a news conference Sunday, authorities said murder charges should be following soon

Authorities stressed that Martinez-Guzman’s arrest should bring relief to a community that’s been on edge since the string of killings started last week.

Connie Koontz, 56, was murdered inside her home on James Road in Gardnerville Ranchos on Jan. 9 or 10. Several days later Sophia Renken, 74, was killed in her home on Dresslerville Road.

On Wednesday, Jerry David, 81, and his wife Sherri, 80, were found in their home around 4 p.m. Both died from gunshot wounds.

Booking photo of Wilber Martinez-Guzman(Photo: Carson City Sheriff)

“We felt it was important for the public to know that we are confident we have the person responsible for the La Guardia Lane homicides as well as the homicides in Douglas County,” Washoe Sheriff Darin Balaam said. “The information we have now indicates there are no outstanding suspects at this time, but the investigation is still ongoing.”

Authorities did not say what connection there might have been between the suspect and victims.